org.apache.pinot.tools.data.generator

Class PatternSpikeGenerator

java.lang.Object

org.apache.pinot.tools.data.generator.PatternSpikeGenerator

All Implemented Interfaces:

Generator

public class PatternSpikeGenerator
extends Object
implements Generator

PatternSpikeGenerator produces a series of log-normal spikes with log-normal arrival times, with optional smoothing. This pattern is typical for rare even spikes, such as error counts. The generated values are sampled non-deterministically. Generator example:

     baseline = 0
     arrivalMean = ?
     magnitudeMean = ?

     returns [ 0, 0, 0, 0, 0, 0, 47, 15, 2, 1, 0, 0, ... ]
 

Configuration examples:

• ./pinot-tools/src/main/resources/generator/simpleWebsite_generator.json
• ./pinot-tools/src/main/resources/generator/complexWebsite_generator.json

Constructor Summary

Constructors

Constructor and Description
PatternSpikeGenerator(double baseline, org.apache.pinot.tools.data.generator.PatternSpikeGenerator.DistributionType arrivalType, double arrivalMean, double arrivalSigma, org.apache.pinot.tools.data.generator.PatternSpikeGenerator.DistributionType magnitudeType, double magnitudeMean, double magnitudeSigma, double smoothing, int seed)
PatternSpikeGenerator(Map<String,Object> templateConfig)

Method Summary

Modifier and Type	Method and Description
void	init()
Object	next()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PatternSpikeGenerator

public PatternSpikeGenerator(Map<String,Object> templateConfig)

PatternSpikeGenerator

public PatternSpikeGenerator(double baseline,
                             org.apache.pinot.tools.data.generator.PatternSpikeGenerator.DistributionType arrivalType,
                             double arrivalMean,
                             double arrivalSigma,
                             org.apache.pinot.tools.data.generator.PatternSpikeGenerator.DistributionType magnitudeType,
                             double magnitudeMean,
                             double magnitudeSigma,
                             double smoothing,
                             int seed)

Method Detail

init

public void init()

Specified by:

init in interface Generator

next

public Object next()

Specified by:

next in interface Generator